Contents: Screen mesh used
Primary Key: Code
Parent Table: none
Columns:
| Name | Type | Size |
| CODE | Number (Integer) | 2 |
| LABEL | VARCHAR | 25 |
Codes:
| CODE | LABEL |
| 0 | No screen |
| 1 | 1/4 screen |
| 2 | 1/8 screen |
| 3 | Mixed screen |
| 4 | 1/4 or no screen |
| 5 | Double Screen (1/4 and 1/8) |
| 6 | Unknown |
| 7 | 1/8 only |
| 8 | Flotation |